Circuit Lake

I think this is Cool idea related to Microcontroller project created by J. Lepot. This USB scope is based on a Atmel Tiny45 cpu and cost less than 5€ with a homemade pcb. It has 2 analog inputs and can supply 5V on the 4 pins header on the right. One of the inputs can be scaled down with the trim pot.

The firmware in the Tiny45 is written in C and compiled with Winavr and usb source code from obdev. (more…)

It is a universal lithium ion battery with a battery charger intelligent interface based on a microcontroller Atmel ATmega8 using GCC worm. 3.2. The rate settings are established using one of three methods: a Smart car if the battery is detected, the battery settings are used. If the "Custom" is selected then the settings are using on-board DIP and variable resistance. If not, pre-sets of parameters are selected on the basis of other positions DIP

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The purpose of this project is to build a shaded lamp and to switch this lamp on and off in normal way. Then you could by exception dimming the lamp more or less with your TV remote control. To processing the RC5 code The project utilized by Microcontroller PIC 12F629.

With the ‘0′ button in TV mode you can dim the lamp, turn more and less bright. The remote control should send more then one RC5-signal per button-press seeing that the first one is ignored, this does imply that when the remote button is pressed a short time, there nothing happens. With the P+ and P- button from a system at choice you can adjust the maximum and minimum dim-levels and with the ‘1′ button the start-up brightness.
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by Ibrahim Kamal

This Project shows you how to build a small, cheap and simple frequency meter, without any fancy, out of reach components. The simple proposed design can measure frequencies up to 40 Mhz with errors below 1%! This degree of precision will be more than enough to debug most of your analog and digital circuits, and will give you the ability to analyze many aspects that you were unable to see before. The design is built on a ATMEGA16 micro controller. There are no crystal oscillators, as we are using the internal RC oscillator, calibrated to 8 MHz. To programming the AVR microcontroller it used C code which is compiled with winAVR.

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